Ultrasound biomicroscopy comparison of ab interno and ab externo intraocular lens scleral fixation

Ultrasound biomicroscopy comparison of ab interno and ab externo intraocular lens scleral fixation

Author Horiguchi, Lie Google Scholar
Garcia, Patricia Novita Autor UNIFESP Google Scholar
Malavazzi, Gustavo Ricci Autor UNIFESP Google Scholar
Allemann, Norma Autor UNIFESP Google Scholar
Gomes, Rachel L. R. Autor UNIFESP Google Scholar
Abstract Purpose. To compare ab interno and ab externo scleral fixation of posterior chamber intraocular lenses (PCIOL) using ultrasound biomicroscopy (UBM). Methods. Randomized patients underwent ab externo or ab interno scleral fixation of a PCIOL. Ultrasound biomicroscopy was performed 3 to 6 months postoperatively, to determine PCIOL centration, IOL distance to the iris at 12, 3, 6, and 9 hours, and haptics placement in relation to the ciliary sulcus. Results. Fifteen patients were enrolled in the study. The ab externo technique was used in 7 eyes (46.6%) and the ab interno in 8 eyes (53.3%). In the ab externo technique, 14 haptics were located: 4 (28.57%) in the ciliary sulcus

2 (14.28%) anterior to the sulcus

and 8 (57.14%) posterior to the sulcus, 6 in the ciliary body and 2 posterior to the ciliary body. In the ab interno group, 4 haptics (25.0%) were in the ciliary sulcus, 2 (12.50%) anterior to the sulcus, and 10 (75.0%) posterior to the sulcus, 4 in the ciliary body and 6 posterior to the ciliary body. Conclusions. Ab externo and ab interno scleral fixation techniques presented similar results in haptic placement. Ab externo technique presented higher vertical tilt when compared to the ab interno.
Keywords Transscleral Suture Fixation
Haptic Position
Language English
Sponsor CAPES Foundation, Ministry of Health, Brazil
Date 2016
Published in Journal Of Ophthalmology. New york, 2016.
ISSN 2090-004X (Sherpa/Romeo, impact factor)
Publisher Hindawi publishing corp
Origin http://dx.doi.org/10.1155/2016/9375091
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000376902700001
URI http://repositorio.unifesp.br/handle/11600/49501

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